from car import *
from battery import *

class ElectricCar(Car):
    def __init__(self, make, model, year):
        super().__init__(make, model, year)
        self.battery = Battery()

    def describe_battery(self):
        print(f"This car has a {self.battery_size}-kWh battery.")

    def fill_gas_tank(self):
        print("This car doesn't need a gas tank!")
